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18 papers · 2 filters
Electroweak phase transitions in the secluded U(1)-prime-extended MSSM
Cheng-Wei Chiang, Eibun Senaha
The electroweak phase transition (EWPT) in the secluded--extended MSSM (sMSSM) is studied. Using the effective potential at zero and finite temperatures, we search for the n…
Model independent analysis of the forward-backward asymmetry of top quark production at the Tevatron
Dong-Won Jung, P. Ko, Jae Sik Lee +1
Motivated by a possible anomaly in the forward-backward (FB) asymmetry of top quark (A_{\rm FB}) observed at the Tevatron, we perform a model independent analysis on q \bar{q} \to…
Study of Decays in the Family Non-universal Models
Cheng-Wei Chiang, Run-Hui Li, Cai-Dian Lü
In a combined investigation of the decays, constraints on the related couplings in family non-universal models are derived. We find that wit…
The Family SU(2)_l x SU(2)_h x U(1) Model
Cheng-Wei Chiang, N. G. Deshpande, Xiao-Gang He +1
We consider extension of the standard model where the first two families of quarks and leptons transform according to the group and t…
Longitudinal Weak Gauge Bosons Scattering in Hidden Z' Models
Kingman Cheung, Cheng-Wei Chiang, Yu-Kuo Hsiao +1
Longitudinal weak gauge boson scattering has been well known as a powerful method to probe the underlying mechanism of the electroweak symmetry breaking sector of the Standard Mode…
New Physics in Bs -> J/psi phi: a General Analysis
Cheng-Wei Chiang, Alakabha Datta, Murugeswaran Duraisamy +3
Recently, the CDF and D0 collaborations measured indirect CP violation in Bs -> J/psi phi and found a hint of a signal. If taken at face value, this can be interpreted as a nonzero…